rx7fcfc

iTrader: (1)

i have a complete fc wit s4 engine in perfect conditions and my friend is selling me a fb wit a 12a how hard would it be to put the 13b to the fb and do i have all the part i need wit the fc parts car and does anybody have a link to a tread or site that might walk me thru it and from 1 to 10 how difficult is it?thanks for looking

EvilWankel

iTrader: (2)

There is plenty of write-ups on this on this website. Are you trying to keep the 13b fuel injected, or going carbureted? Fuel injection is definitely going to be more difficult. Plenty of little things you wont expect at first that you will need. All in all though, not too difficult.

rx7fcfc

iTrader: (1)

im gonna put the 13b fuel injected in the fb shell

flight_of_pain

If you have the entire FC it is a fairly straight-forward swap. You will need to decide on motor mount options, the easiest way is a gsl-se front cover swap.

rx7fcfc

iTrader: (1)

front cover swap? how does dat work?

rx7fcfc

iTrader: (1)

also how would i b able to have a working speedometer and all the stock gauges from the fc?

flight_of_pain

FBs have the engine mount at the front of the motor vs the FC side mount. If you use the search function for front cover swap it is covered in detail ~1,000,000 times.

You aren't getting the FC gauge cluster into an FB without a shitload of work. The best way to get a working speedometer is to plug one end of the cable into the transmission and the other into the speedometer, it has worked for me numerous times .

hornbm

Personally, I would just convert to carb and keep it simple. The s4 induction system isn't that great. More power can be had with a proper carb. The only 2 reasons I would keep the efi is if gas mileage and emissions are a concern.

However, those should be the last priorities for any rotary owner. LOL.